linux-kernel - Re: [EXT] Re: [PATCH 1/2 v8] dt-bindings: watchdog: marvell GTI system watchdog driver

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Date:   Mon, 29 May 2023 13:34:02 +0100
From:   Conor Dooley <conor.dooley@...rochip.com>
To:     Bharat Bhushan <bbhushan2@...vell.com>
CC:     Conor Dooley <conor@...nel.org>,
        "wim@...ux-watchdog.org" <wim@...ux-watchdog.org>,
        "linux@...ck-us.net" <linux@...ck-us.net>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>,
        "linux-watchdog@...r.kernel.org" <linux-watchdog@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Sunil Kovvuri Goutham <sgoutham@...vell.com>
Subject: Re: [EXT] Re: [PATCH 1/2 v8] dt-bindings: watchdog: marvell GTI
 system watchdog driver

Hey Bharat,

On Mon, May 29, 2023 at 06:14:07AM +0000, Bharat Bhushan wrote:

> Fallback you mentioned make code look simple. Is below representation correct for above mentioned fallback? 
> 
> properties:
>   compatible:
>     oneOf:
>       - const: marvell,cn9670-wdt
>       - items:
>           - enum:
>               - marvell,cn9880-wdt
>               - marvell,cnf9535-wdt
>           - const: marvell,cn9670-wdt
>       - const: marvell,cn10624-wdt
>       - items:
>           - enum:
>               - marvell,cn10308-wdt
>               - marvell,cnf10518-wdt
>           - const: marvell,cn10624-wdt

Instead of having const: bits for each of the single-compatible ones, if
you are not going to add descriptions, I'd probably do:
properties:
  compatible:
    oneOf:
      - enum:
          - marvell,cn9670-wdt
          - marvell,cn10624-wdt

      - items:
          - enum:
              - marvell,cn9880-wdt
              - marvell,cnf9535-wdt
          - const: marvell,cn9670-wdt

      - items:
          - enum:
              - marvell,cn10308-wdt
              - marvell,cnf10518-wdt
          - const: marvell,cn10624-wdt

> And driver will have
>         { .compatible = "marvell,cn9670-wdt", .data = &match_data_octeontx2},
>         { .compatible = "marvell,cn10624-wdt", .data = &match_data_cn10k},

Otherwise, looks good to me. You should probably also rename the file to
match one of the compatibles contained in it.

Thanks,
Conor.

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